Dude you are so right, if your a Bitcoin investor, then you should be trading and repurchasing and re-trading all of the time. It is the only way to profit in spite of price drops. You protect your investment by selling and re-buying, This way you continue to garner a profit, increase the value of your long term investment. The price drops don't mean much if your constantly rotating. your coin.
If you want to buy and just sit on the coin, you will have to be very patient, expect to wait around 2 years before it is really worth selling off. Buy and sell buy and sell that is how you win in this game.